Science

Wednesday, 21 October 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Phobos
Phobos’ orbit decreases by about 1,8 meters every 100 years.
In about 50 million years, the moon could be torn apart by Mars’ tidal forces or fall to its surface.
Read all facts
Titan
The average temperature on its surface is -179.2 degrees Celsius.
Due to the dense atmosphere and its distance from the Sun, only 1% of the amount of light that reach ...
Find out more
Silver
Silver is the raw material for the production of coins.
Coins were produced from it as early as the 7th century BC. They were made in an ancient country called Lydia, from an alloy of silver and gold called electrum.
Read all facts
Earth
The Earth, like all planets in space, is doomed to destruction.
Life on the surface of our planet has been wiped out many times by great cataclysms called great ext ...
Find out more
NASA
After the Space Shuttle Columbia disaster, the construction of the ISS was paused until the launch of Space Shuttle Discovery on July 26th, 2005.
Read all facts
Silver
It is a silvery-white metal.
Its color misled gold seekers who, finding a gold nugget combined with a silvery metal, were mistake ...
Find out more
Tears
The frequency of crying depends on human nature.
There is no equation to calculate how often people cry. It depends on various factors, such as emoti ...
Find out more
Ganymede
The surface temperature of the moon is about 110 K.
Read all facts
Mushrooms
The mushroom called Entoloma hochstetteri is a mushroom with a blue fruiting body color.
Its image is featured on the back of a New Zealand 50-dollar note from 2002.
Read all facts
Moon
The period when the moon orbits the Earth is called a sidereal month, and it lasts 27,3 days.
Read all facts
17 facts about Titan
17 facts about Titan
The largest of Saturn’s satellites
Titan is the only moon in the Solar System with such a dense atmosphere. It is the second largest moon in the Solar System after Ganymede (Jupiter III ...
18 facts about amber
18 facts about amber
Fossilized tree resin
Amber is one of the most interesting natural products. It looks like a gemstone, but it is a fossilized tree resin from ancient trees dating back mill ...
16 facts about liver
16 facts about liver
24/7 laboratory
The liver is one of the most essential human organs. It is extensively multitasking—it produces, filtrates, converts, and stores. It is thanks to the ...
29 facts about NASA
29 facts about NASA
For the Benefit of All
The Cold War, although a grim period in world history, brought an intense rivalry in a space race between the U.S., and the Soviet Union. As a result, ...
16 facts about Aurora
16 facts about Aurora
Northern light that has delighted people for centuries
Auroras can be different. Sometimes it is bright and dancing, shimmering with different colors, sometimes it appears still. It has always fascinated p ...
19 facts about Brain
19 facts about Brain
Organic supercomputer
The brain is one of the most important and most fascinating and complex organs in the human body. It is an incredibly plastic command center that over ...
16 facts about Phobos
16 facts about Phobos
The larger of two moons of Mars
We do not know the exact origin of this satellite. We know, however, that it is dangerously close to its planet and is in for a catastrophe. It is not ...
Previous